I took Organic Chem I in the fall, I studied abroad in the spring, and then I took Organic Chem II in the summer. It was nice because it was the only class I took over the summer, so I had more time to study for it. I had a higher grade and better understanding of O. Chem II vs. O. Chem I because of it. Granted, the rest of the class was taking it in the summer because they failed it the first time, but they were real nice and dedicated to getting a better grade.